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Standard - Usually ships in 3 business days Custom - Usually ships in 1 to 2 weeks

In Stock

See DisclaimerThis CBU mailbox mounting kit is for installations where new concrete is being poured. If the concrete slab is already poured and dry, then you will need to purchase Expansive Wedge Anchor Bolts. Actual measurements between bolts should be confirmed prior to installation.

USPS Information

Installation

USPS Approved and Ready

CBU's are Pre-approved

Pre-approved by the USPS, cluster mailboxes are considered the industry standard when it comes to outdoor, centralized mail delivery.

Installation Location

If you are involved in a new construction development, you have probably already consulted or will consult with your local postmaster regarding the placement (location) of your CBU. If not, we recommend it.

Master Lock Installation

After installing the CBU, follow-up with your local post office and the USPS will install their master lock for the main access door. Note: the USPS provides the master lock and only they have the keys to it.

Includes the VogueTM Classic Decorative Cap & Pedestal

The Classic Decorative crown cap and pedestal cover by Auth-Florence adds a touch of elegance to the standard CBU. While the specifications are identical to the standard model, the decorative accessories beautify the CBU for residences or commercial spaces looking to add a more stylish curb appeal for their tenants. Everything required to assemble the decorative components is included in the CBU package. For more details on what is included for installation, see What is included with the CBU?

Five Year Warranty

All cluster box units (CBUs) sold on BudgetMailboxes.com come with a Five (5) Year Warranty.

Florence Manufacturing provides a five (5) year Warranty on its products from the date of purchase from an Authorized Florence Dealer (i.e., BudgetMailboxes.com). For more info, refer to the Auth-Florence Warranty sheet.

New USPS Standard

Obsolete: NDCBUs are no longer permitted for replacement or new installations

New CBUs accommodate both mail and packages while providing greater security.

Developed and approved by the USPS in 2005, the new cluster box unit specification (right image) became the standard for all manufacturers and replaces both the outdated Neighborhood Delivery Collection Box Unit (NDCBU) and the "E" series CBU.

While the original NDCBU introduced convenience for residents and letter carriers alike, it is no longer permitted for replacement or new installations. These outdated units fall into disrepair as they age and are, in many cases, quite dilapidated. The newer 2005 specifications boast a thoroughly tested design that provides better security and durability over time.

CBU High-Security Standards

All CBUs are designed to deter mail theft attempts using the following features:

All units are made of high grade, industrial, aircraft-quality aluminum.

On the outside of the unit, there are no removable fasteners. This prevents tampering.

The cabinet is made using high-precision robotic welding.

The CBU uses a sloped roof for water run-off and a drip-edge in the front to protect the individual slots from rainwater.

The master-loading door has a vertical bridge with an overlap that eliminates the gap between the two master-loading doors -- in other words, there are no pry-points on the unit.

Heavy-duty, zinc-plated cam locks are tamper proof and latch through the aluminum frame for added security.

The outgoing mail slot uses a sloping hood to prevent a person from reaching in with their hand.

The aluminum, anti-fish comb deters thieves from reaching into the slot with coat hangers or other prying tools.

Nationwide Mailbox Installation Services

Our Mailbox Installation Service

Licensed & Insured

Trained Installation pro

Available in your area

View Details Below

On our CBU product pages, you will see an option labeled, "Need professional mailbox installation?" By making this option available on the product page, our goal is to be the one-stop shop for your cluster mailbox needs. We offer the following installation options:

Option 1 - Installer mounts pedestal on existing anchor bolts

Typically, you will select this option if you are replacing a CBU where you will reuse the existing anchor bolts embedded in the concrete. The installer will mount the pedestal on the existing bolts and attach the mailbox to the pedestal.

Option 2 - Installer mounts pedestal and installs anchor bolts

In this situation, the installer will drill the anchor bolts into the concrete pad. You will need to procure the anchor bolts beforehand -- you can purchase these directly from us with your CBU order.

Option 3 - Installer removes existing anchor bolts and replaces them

This scenario is similar to Option 2 listed above, with one exception: the installer will remove the existing anchor bolts from the concrete pad prior to installing the new anchor bolts.

Scenarios where this Option may be required:

You are upgrading from an older CBU model (Auth-Florence 1575 or NDCBU) where the new CBU pedestal cannot be mounted on the existing anchor bolts.

Any situation where the CBU Pedestal cannot be installed over the existing anchor bolts.

Mailbox Installation FAQs

What's included in mailbox installation?

Unpacking new CBU mailbox purchased from BudgetMailboxes.com

Installation of CBU pedestal onto the existing concrete pad* via one of the options listed above

Mounting CBU box to pedestal

Are your installers licensed and insured?

Yes. We only work with licensed and insured mailbox installers.

Do you offer service in my area?

Yes, unless you are outside the contiguous US. We offer installation services for our customers within the 48 contiguous United States.

Will the installer apply lettering to the mailbox?

No. Installation does not include applying the standard decals supplied with your CBU. You will need to apply the numbers after the unit is installed.

Will the installer remove my old cluster mailbox?

If you are replacing old or damaged cluster mailboxes (pedestal CBU mailboxes), we can ask the installer to remove them from the location as long as we are notified ahead of time. So, if you need the old units removed, please let us know as soon as possible. Please note: an additional charge of $100.00 will apply to your installation service for removal of old cluster mailboxes.

Why should I hire a pro to install my mailbox?

Installing a pedestal mailbox can be complicated. A professional can take care of it more efficiently, saving you time and money.

Will the installer supply any materials I need to secure my mailbox?

No, you need to provide the anchor bolts for this service. Unless you already have anchor bolts, we recommend you purchase anchor bolts with your CBU order. If additional supplies are needed at the site, the provider may be able to supply them at an additional cost. Please also ensure that the location is near a usable power source, if possible.

Will Budget Mailboxes communicate with the installer on my behalf?

Yes. While it is expected that the customer deals with the installer on location, we take it as our responsibility to communicate with the installer on your behalf prior to the appointment. We will also follow up with you to confirm the appointment and any other details.

* It is the customer's responsibility to ensure that the location for installed cluster mailboxes meets USPS requirements. Contact your local post office if you have questions about their specific requirements when installing CBUs at your location.

Don't need USPS delivery? Convert to private use.

If you don't need USPS delivery and you intend to use the CBU for private use (where a company or organization will need access to open the master door for delivery), then you need the Postal to Private Conversion Kit, which can be purchased via the dropdown options section of any CBU.

Under the Option labeled "Will the USPS be delivering to this mailbox?", select "No, this box is for private use...". Private delivery CBUs are typical where mail delivery is handled by private distribution within the company or organization.

Lead Times

All orders ship directly from the factory floor to ensure the quickest available delivery.

BudgetMailboxes.com takes delivery dates and deadlines seriously. We update our lead time projections frequently in an effort to provide you with the most accurate projections. Currently, we estimate the following lead time:

Standard - Usually ships in 3 business days Custom - Usually ships in 1 to 2 weeks

When you select standard numbering (e.g, 1-8, 1P & 2P) for the CBU doors, the mailbox usually ships in 1 to 3 weeks.

When you select custom number plates or engraving, the CBU will usually ship in 3 weeks.

Customize Your Door ID Layout

Step 2 - Open this layout form linked here and customize the layout to suit your needs.

Important: To ensure a custom layout is processed correctly, we ask that you complete this form after completing your purchase. For your convenience, we will also email you a copy of the form after your order is placed (note: this only applies if you select Custom Layout from the dropdown options).

Customers purchasing a CBU with Standard Numbering or Custom Numbering applied top-down from left to right do not need to fill out this form.

Door ID Options

Decals: All CBUs come standard with silver adhesive decals 1.5 inches high by 1.75 inches wide. Black lettering can contain up to five characters per decal.

Engraving: Custom engraving utilizes the USPS Standard US Block font with up to 12 characters per line. This 3/4 inch high engraving may be created with or without one of two color fill options (white or black).

Note: CBUs selected with custom decals or engraving usually ship in three (3) weeks. We cannot rush orders for units purchased with custom numbering.

Optional Anchor Bolts

anchor L-bolts (for wet concrete)

expansion anchor bolts (for existing concrete)

If you need anchor bolts for your CBU installation, add them from the dropdown options above the Add to Cart button.

Question: How do I know if I need anchor bolts?

Answer: You will need anchor bolts to install the CBU pedestal. If you plan to install your bolts immediately after pouring new, wet concrete, then you can purchase the L-bolts. Or, if you plan to install the CBU pedestal into dried or existing concrete, you will need the expansion bolts.

Question: What is the difference between the two different types of bolts?

Answer: The L-bolts for pedestal installation are specifically for installations where new concrete is being poured. For installing your CBU in existing concrete, you will need the expansion anchor bolts for existing concrete.

Each bolt kit includes everything required to mount the CBU pedestal to concrete.

*Note: actual measurements between bolts should be confirmed prior to installation. BudgetMailboxes.com is not liable for faulty installation due to inaccurate measurements.

Expansion Anchor Bolts Overview

When securing the CBU pedestal to a dried or existing concrete pad, it is critical to use the recommended class of hardware to guarantee the strength and safety of the installation. Galvanized or Stainless Steel masonry anchor bolts (1/2 in. x 5 1/2 in. min. length) are the approved hardware to be used when installing a CBU pedestal to an outdoor concrete location.

When installed correctly and to recommended torque specifications, these bolts create the strongest possible bond while retaining their integrity and tensile strength. However, even the finest hardware can only function as well as it is installed. Please follow the specific guidelines and manufacturer's recommendations when installing these anchors. For an installation tutorial, please review the Installation Walkthrough on this page.

Optional Vandal-Proof Fasteners for Added Security

Vandal-Proof, breakaway fasteners prevent mailbox theft by making it nearly impossible for would-be thieves to remove the pedestal using common tools. How does it work?

After you have successfully installed your cluster mailbox at the desired and USPS approved location:

Apply the breakaway fasteners with a traditional wrench or socket.

The top fastener breaks off after installation, leaving you with an installed fastener with no drive.

Your CBU pedestal will now be permanently secured at your desired location.

** Important: these vandal-proof fasteners are easy to install but very difficult to remove. This is what makes them a High-Security feature. Contact us if you have any questions. **

Technical Specifications (Dimensions, etc.)

The top of the cluster mailbox (the crown) is 30.5 inches wide by 18.5 inches deep. The cluster box itself measures 30.5 inches wide by 16.75 inches deep. Including the pedestal, the total unit height is 62 inches tall. For more detailed specifications, please view this Technical Drawing.

Color Options

Sandstone is the most popular color option and is considered the new architectural standard. All finishes are powder-coated and corrosion-resistant. If you need to purchase a different color, you can view our selection of variations on the Classic Decorative 12 Door CBU Category Page.

Design and Other Specifications

The 12-Door CBU includes one (1) fully integrated parcel lockers and a matching pedestal. One additional compartment is labeled "Outgoing Mail" and includes a weather protection flap and an 12 in. W x 3 in. H mail slot.

The CBU also features individually numbered mail compartments and a mail carrier access door for USPS provided master arrow lock.The unit itself is constructed of high-grade, heavy-duty, aircraft aluminum while the hardware is constructed of stainless steel. All CBUs on BudgetMailboxes.com are manufactured here in the USA.

Wide Tenant Boxes Accommodate Larger Envelopes and Magazines

Shown above: the 12 Door CBU Tenant Box (3 in. high)

Shown above: the 13 Door CBU Tenant Box (4 - ¾ in. high)

The Cluster Box Unit's tenant compartment size is known as a 4C Horizontal mailbox, which is the current USPS Standard for centralized mail delivery. Under 4C regulations, the tenant boxes are wider so that all mail, including larger envelopes and magazines, can be delivered flat without any folding. There is also enough room in each tenant box for small-sized parcels.

Integrated Parcel Lockers

Among the many benefits of the CBU are the integrated parcel lockers for package delivery. If you receive a parcel, the Postal Carrier will conveniently leave the key to the parcel locker in your mailbox so that you can retrieve your package.

Security Tip: Once you enter the key and open the parcel locker the key cannot be removed. This is by design so that only the postal carrier can remove the parcel locker key. See video explanation below:

The matching CBU Pedestal - Easy Installation

*Disclaimer: the CBU anchor bolts, nuts, and/or vandal proof nuts for pedestal installation are specifically for installations where new concrete is being poured. Actual measurements between bolts should be confirmed prior to installation. BudgetMailboxes.com is not liable for faulty installation due to inaccurate measurements.

All cluster mailboxes include an easy-to-install pedestal. The CBU Pedestal is constructed of heavy-duty, corrosion-resistant aluminum. Cluster mailboxes can be mounted on the included pedestal (or a base of your choice provided it meets USPS height specifications).

The pedestal comes with the needed stainless steel hardware for 1) mounting the pedestal to the cluster box and 2) mounting the unit to the concrete slab (using standard bolts). If you need to purchase anchor bolts for installation prior to pouring the concrete slab,* you can add these via the dropdown options above the Add to Cart button.

Heavy-Duty Cam Lock

Every tenant door on the Cluster Box Unit features a stainless steel heavy-duty five-pin cylinder cam lock with a dust and rain shield, along with three (3) keys. This simple yet effective locking mechanism provides the needed security to keep your mail safe until you retrieve it.

If you ever need to replace one of the cam locks, the process is very straightforward. Watch the video below to see how you can replace one of these locks within minutes.

Opening the Master Doors & Locating Your Keys

Cluster Box Units (CBUs) are accessed from the front through two (2) easy-to-open master door panels.

Watch the video to see how to open the master doors and locate your keys (hint: the keys are taped to the inside of your box and are usually inside one of the parcel lockers).

See the corresponding video for more details.

Installation Walkthrough

Here, we go over the basics of installing your cluster box into existing concrete. If you plan to install your CBU into new concrete, please see our Installation Manual below.

Note: we recommend you watch the video at the bottom of this section to get an idea of the installation process.

The Pedestal

When you open up the carton for the pedestal, you have a gasket and a template also. Follow the steps below to install your CBU pedestal into the concrete pad:

Locate the center of the pad, put the mounting template down, and then start drilling your holes (using the template).

Drill down at least five and three-quarters with a half-inch drill bit.*

Make sure the surface is clear of rocks and debris.

Once the area is clean, place the gasket down on the concrete (this serves as a barrier between the cement and the pedestal).

Now place the pedestal on top of the gasket. If it's not level, you can add washers to the uneven side.

Once the pedestal is level, you can place your anchors, which are five and a half inches long by one-half inch wide.**

Place the anchors into the holes and torque the bolts down until they're tight using a socket wrench (you can also use an impact wrench to tighten the bolts).

Once you've tightened the bolts, double check that the pedestal is level.

* In the tutorial video, the installer drills down 4-1/2 inches.

** In the same tutorial video, the installer uses anchors that are 4-1/4 inches long. Our anchor bolts are 5-1/2 inches long, according to the manufacturer's minimum requirements.

The Cluster Box

Upon receiving the boxes, open them up to make sure there's no damage. Two people should place the box on the pedestal stand: one person can hold the box while the other person fastens it to the pedestal.

To fasten the box:

Inside the box, there will be access plates in the parcel locker(s). Go ahead and slide those out.

This will allow you to access the hardware to secure the box to the pedestal.

Place the washer on the bolt, followed by the nut. Do this to all four top bolts.

Ratchet the nuts with a nine-sixteenths (9/16) socket wrench.

Once these bolts are tight, return the access plates you removed from the parcel locker(s) in step one to cover the hardware.

Once complete, close up the box. Now, you will need to contact the post office to send someone to install their arrow locks for USPS access. The postman will install one arrow lock in the outgoing mail slot, and one in each parcel locker.

Auth-Florence USPS Approved Parcel Lockers

Auth-Florence is the Sole Source Supplier to the USPS, meaning they are the only manufacturer authorized to supply cluster box units, outdoor parcel lockers, replacement pedestals, and parts directly to the USPS.

Auth-Florence is also the only company to manufacture the 1590-T2 Parcel Locker with Four (4) instead of Two (2) Parcel Locker doors.

Decorative Accessories - Comprehensive Comparison

VogueTM Decorative Cluster Mailbox Accessories

These fashionable, snap-together toppers and pedestals put the final touch on your neighborhood or office cluster mailboxes. Choose from either the Classic or Traditional Styles below. Click the image to view the decorative configuration of your choice.

CBU Care and Cleaning

Cluster Box Units are simple to maintain and clean. Due to the durable nature of aerospace-grade aluminum and the weather-proof powder-coating, these units will resist erosion, scratching and peeling year after year. However, proper care and cleaning will keep your unit looking pristine and prevent environmental buildup.

Basic Mailbox Cleaning

Use a soft cloth dampened with a mild detergent or a properly diluted, biodegradable, water-based cleanser such as Simple Green™.

Avoid using abrasive cleaners such as Comet™ or Brillo Pads™, as they may scratch the surface of your CBU.

Auth-Florence USPS Approved Parcel Lockers

Auth-Florence is the Sole Source Supplier to the USPS, meaning they are the only manufacturer authorized to supply cluster box units, outdoor parcel lockers, replacement pedestals, and parts directly to the USPS.

Auth-Florence is also the only company to manufacture the 1590-T2 Parcel Locker with Four (4) instead of Two (2) Parcel Locker doors.

Decorative Accessories - Comprehensive Comparison

VogueTM Decorative Cluster Mailbox Accessories

These fashionable, snap-together toppers and pedestals put the final touch on your neighborhood or office cluster mailboxes. Choose from either the Classic or Traditional Styles below. Click the image to view the decorative configuration of your choice.

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Regarding a Product's Shipping Estimate

The lead times listed on this product page represent the best-case scenario for shipping estimates. While we may show that a product "usually ships" within a given period, this period should not be confused with a delivery estimate. Rather, we expect the product to ship from the manufacturer's warehouse within this time-frame.

What does this mean for you? Once you place an order on our site, we begin processing the order with the manufacturer. The processing lead time we list on the product page is the most current estimate from the manufacturer regarding the product.

Below, we answer the top three FAQs our customers have regarding delivery estimates.

How long will it take to receive my commercial mailbox?

When you order a commercial or cluster mailbox, we process the order with the manufacturer within 1 business day. Once processed, the order usually ships in the time-frame listed on the product page. Since Cluster Mailboxes are large items, they ship via freight carriers. This means that the transit times for these will usually be 5 to 7 business days.

A few things to note about purchasing a cluster mailbox or similar large, commercial-grade product:

The freight carrier will call the number you list on the shipping address a day before delivery to schedule a delivery appointment with you.

The manufacturer ships using their chosen freight carrier depending on the products ordered and the delivery location.

The majority of online retailers who sell commercial mailboxes (CBUs, etc.) ship directly from the manufacturers, just as we do.

If you purchase a commercial mailbox from us and decide to cancel because a competitor lists a "faster" lead time on their site, you may be delaying the time it will take to receive your mailboxes. Why? Because you are placing a new order to be sent to the same manufacturer for processing.

What if I order multiple products from different brands?

If you ordered multiple products, it is possible that they are made by different manufacturers. If this is the case, your products will ship to you separately from each manufacturer.

For example, if you purchase a Mayne Post with a Whitehall Mailbox, your post will ship from Mayne's warehouse in about 3 business days, but your mailbox will ship separately from Whitehall in about 2 to 3 weeks if customized with address numbers.

How can I estimate my shipment's transit time?

Depending on the carrier and your location, transit times will vary. Delivery estimates are best projected using your carrier tracking number. Once your order ships, we'll send you a shipping confirmation email that includes your carrier (FedEx, UPS, YRC, etc.) and tracking number.

Note: If you place an order with us and do not receive an Order Confirmation email, check your spam inbox. If you still do not see an Order Confirmation email in your inbox, contact us right away at (866) 707-0008 . We will provide you with your Order Number and any other details you need.